package day2;

/**
 * @author oldliu
 * @since 1.0
 */
public class StrTest {
    public static void main(String[] args) {
        String s="Abc";
        String s2="Abc";
        System.out.println(s==s2);
        System.out.println(s.length());
        //
        System.out.println(">>>>>>>>>>>>>>>>>>");
        s=s.toUpperCase();
        System.out.println(s);
        s=s.concat("java76");
        System.out.println(s);
    }
}
